Ethyl-5-(2-hydroxyphenyl)isoxazole-3-carboxylic acid 、
三苯基膦 、
四氢吡喃-2-甲醇 、
偶氮二甲酸二叔丁酯 以
四氢呋喃 为溶剂,
以to afford 380 mg (54%) of ethyl 5-[2-(tetrahydro-2H-pyran-2-ylmethoxy)phenyl]isoxazole-3-carboxylate as a yellow solid, which的产率得到5-[2-(tetrahydropyran-2-ylmethoxy)phenyl]isoxazole-3-carboxylic acid ethyl ester